Electrical signaling device.



PATENTifi) D30 3, 1903.

H. o. GILES; ELECTRICAL SIGNALING DEVICE.

. APPLIUVATIONI FILED APR. 24. 1903. 10' xonnL;

2 sums-sum 1.

n 2x6 71 to 7".

; Wiifieys ewu 1 PATENTEb 1350.8, 1903:

Nb. 746,069. f

H. 0. GILES. ELECTRICAL SIGNALING DEVICE.

APPLICATION FI LED APR. 34, 1903.

2 SHEETS-SHEET 2'.

N0 MODEL.

I "fnvefitork: I

- UNITE j STATES" HERBERT CROMWELL GILES,OF NEW-YORK, N. Y.

ELECTRICAL SIIGNALING'DEYICE.

SPECIFICATION forming part of Let ers Patent No. 746,069, dated December 8, 1903. Application filed April 24,1903. Serial No. 154.148; (No model.) i

To all whom it may concern/:-

Be it known'that I, HERBERT ORo wEL'L. GILES, a citizen of the United States, and a resident of the city, county, and State of New York, have invented certain new and useful Improvements in Electrical Signaling Devices, of which the following is'a full, clear, and exact specification.

My invention relates to electrical signaling devices especially applicable for use in connection withrailway signaling and is designed as a safeguard against accident, to give audible warning to the engineer or. fireman, if forfauy reason the visual signals now generally employed are not regarded when set orfor any cause fail of their purpose.

The invention consists, in general terms, of means whereby when a train approaches an open switch or the block-signal is up an electric circuit will be completed and cause an audible alarm in the engine-cab to be operated. r

More specifically, the invention consists of a pivoted contact-bar secured to or near the track adapted to make a sliding contact with a pivoted cont-actbar depending from the front portion of the engine, electrical connections from thetrack 'and track contactbar to'the switch-bar and to the .post and arm of the block-signal target, electrical connections from the engine contact-bar and engine- 'truck to an electric battery, alarm means,

. suchas a bell, and means for operating and discontinuing the operation of the same,

and, details of construction and combinations of parts hereinafter more fully described,

,and' particularly pointed out in the claims.

In -the' following specification I have described my invention as being employed in connection with a switch-bar and block-signal arm, vbut it is obvious that its uses are not limited tosuch connection, and it is within tion of track, a portion of ane gin thespirit of my invention to give it a wider andmore general application by excluding from the circuit either or both these elements and including other devices therein. The invention is illustrated in the accompanying drawings, wherein like figures of refiei'ence indicate like parts throughout the so Y eral views. Figure l is a side elevational vie signed with parts broken away, a block signah'and a switch-bar for operating a switch 'and sign'al-lamp. Fig. 2-is a side elevational view of the switch 1 bar and its supports and the signal-target in positions different from those in which these parts are shown in ,Fig. '1. Fig. 3 is a front elevational view, with cover removed, of the box containing the means for making and breaking the alarm-circuit.

Referring tothe'drawings, 1 l'are sections oi rai secured together by fish-plate 2'. the side of the track is the block-signal, of.

ordinary construction, consisting of the standard 3, to which the. target 4, having an arm 5, is pivoted at 6. The target of the signal is operated by the-passage of thetrain over the rails in a manner well known an not requiring detailed description.

g The means for operating the switch and sig nal-lamp (not shown) consist of standards 7,

carrying rollers 8, between which the switch-' 'bar9 travels. 1 v i l '10 is the hand-lever for advancing and retracting the switch-bar.

12 is the connection bet "een -the switch-bar and the switch-and signal-lamp.

Extending upwardfrom the base-plate 13 of on'eof the standards 7 is .a block 14, to the upperface of which is secured a contact piece or tongue 15, adapted to contact with a pin 16 or the like on the switch-bar when the latter is retracted.

Secured t-othe'standard 3 is a block 17, to which a contact piece or tonguelS, similar'in construction to 15, is fastened. Upon the arm 5 of the target 4 a metal 'plate19 orthe like is screwed or otherwise attached, adapted to make contact with the tongue 18 when the arm is up. v

At the side of the track 1 and mounted upon cross-ties 19 or in other suitable manneris a transversesupport 20, having an upwardly-projecting arm 21. Pivoted near the upper-end of the arm 21 at'22 is abar 23,

arrow-shaped. The bar 2'3-maybe I preferably 7 v I constructed of metal, but 'I have foundit more advantageousto construct the bar of wood and supply it with a n'ietal sheathing.

" Extending from the lower point of the bar 23 t metr 1 m supp rt. 0 s a pr g 24,

to" norm anymaam zs pointing upward A lead-wire 25rnnsfrml1wng 9 18wto the fish-plate 2, a similar wire 26 from the plate 19 to the spring 24,- a similar wire 27 from the pin 16 to the fish plate 2, and a similar wire 28 from the tongue .15 to the spring 21. j i

The engine 29 has the usual cab 30, within 7 which are the battery-box 31, the box 32, con- I ,aining the means for makingand breaking the alarm-circuit, and the alarm 33, here 'i'o shownas an electric bell'of ordinary con-' struction. I I Near the front end of the engine-truck and to therear of; the fender is secured a contact bar 34, similar in shape and construction to the bar 23. The bar 34 is pivoted at. 35 to a block 36 and is caused -to point normally toward the ground by the action of the spring. 37, fastened to' one end of the bar '34 and to the block 36. Leading from the spring '37 a conducting-wire, 38 passes to a binding-post 39 in the side of thebox 32, and from a binding-post ,40 on the truck 41 of the engine a conducting-Wire 42 passes to a binding-post 43 of the battery-box 31. 2 5 The box 32 contains the means for'making and breaking the alarm-circuit,these means consisting of a coil of wire 44, which becomes a magnet when energized and attracts the armature 45, pivoted to the box 32 at 46. A pin 45 limits the motion of the armature 45. Held within the box 32 on a pivot 47 is a small lever 48, the point ofwhich rests upon the end of the armature 45 when the latter is not attracted by the magnet. When the support of the armature 45 is withdrawn from the lever 48, the latter drops upon a knob 49 upon the upper end of a rod 50, projecting upward through asleeve 51 in the box 32. The rod is supplied with a knob orhandle 52 at its 40 lower extremity. Within the box 32 a wire connection 53 runs from'the sleeve 51 to a binding-post '54 and connection 55 from the lever 48 to a binding-post'56. of the box 32 a conductor 57 is run from the conductor 59 leads from the post 54 to the bell To complete the circuit, awire 60 is run from the bell33 to the post 43 of the batteries,

thereot is moved upward and contact between 6o tongue 18 an plate 19 is established. In this position there is a break in the circuit at the bar 23. 1 As theltrain a} roaches the'sw-itch land reaches he bar 23 t e latterand bar 34.

nvill contact and glide upon each other and complete the circuit, thus energizing the coil 44 and causing it to attractthe armature 45, whereupon the lever 48! will drop upon knob 011th e'exterior post 56 toa post 58 of the battery-box, and a- 49 and close the circuitto the bell 33 and ring the same. The current may be readily traced Starting at. the post 43 of battery 31 the ew rent passes to the post 40.on the truckthrough the car-wheels to the fish-plate 2, where it divides, one branch passing through wire 25; to the tongue 1-8,'plate 19, down conductor 26,-

to theTcontact-bar 23.. The other branch "passes along conductor ,27-to .pin 16, tongue 15, down conducto128, through bar 23, where i the branches uniteand pass through bar 34, spring '37, wire 38, to coil 44, through post 62, conductor 61, to post .58. This completes the primary" circuit, and the secondarynbr alarm circuit may be traced from post 58 through to ring untilthe circuit is broken by pushing the rod 50 upward and allowing the armature 45 to drop under the lever 48 and hold the latter away from rod 50.

It will be understood that it is not essential andswitch-bar be included in the circuit, as

either may be omitted without materially af-. fecting the operation of the invention, the circuit being complete if but'one of these elements is'included- From the construction above. described it is apparent that when a train is, approaching an open switch and the engineer should have overlooked the visual directions to stop the' alarm will at once go off and give warning either to the engineer or to the fireman, or both, and such alarm will continue in operation until stopped by pressing upward the rod '50 and breaking the alarnrcircuit. This form of signal is therefore asafeguard of the most positive kind.

Having now described my invention, what Iclai n as new, and desire to secure by Letters Patent, is-- v 1. In a device of the kind herein described to my invention that both the block-signal the combination of an engineer other vehicle carrying a contact-piece, rails or tracks upon which saidvehicle travels, a contact-arm near said tracks, an alarmwithin the-vehicle, and

means for operating the alarm when the contact-piece and arm contact, said means comprising an electric battery, a vertically-movable rod in circuit with the alarm',-said' rod when moved upwardly being adapted tobreak the circuit, a lever adapted to contact withthemovable rod and complete the circuit to the alarm, and a pivoted armature designed to hold the lever out of'cont'act with therod when the alarm-circuit is broken, substantially as described.

. 2. In a de'viceo'f the kind herein described means for operating the alarm comprising a secondarycircuit consisting of an electric battery, a vertically-movable rod surrounded by a sleeve in circuitwith an alarm, a lover pivoted above said rod and normally out of cow contact with the .rod and complete circuit to said alarm said means consisting of a coil, becoming a magnet when energized, and an armature normally holding said lever and :5 rod out of contact, but permitting them to contact when the armature is attracted-by 3-. In a device of the kind herein described l the magnet, substantially as described. means for operating the alarm comprising a In witness whereof I have hereunto set my secondary circuit consisting of an electric. hand in presence of two Witnesses. battery, a movable rod-surrounded byasleeve- HERBERT CROMWELL GILES. in circuit with an alarm, a lever pivoted above T WVitnesses: said rod and means for causing said 'leverto ETHEL 0. SMITH,

HELEN ELOISE MoELHoNn.

tact therewith, and means for causing said lever to contact with the rod and complete the circuit to said alarm, said rod when moved upwardly being adapted to break the circuit, substantiallyas described. 

